Synthesis of imogolite fibers from decimolar concentration at low temperature and ambient pressure: A promising route for inexpensive nanotubes

Levard Clément, Masion Armand, Rose Jérôme, Doelsch Emmanuel, Borschneck Daniel, Dominici Christian, Ziarelli Fabio, Bottero Jean Yves. 2009. Synthesis of imogolite fibers from decimolar concentration at low temperature and ambient pressure: A promising route for inexpensive nanotubes. Journal of the American Chemical Society, 131 (47) : 17080-17081.

Quartile : Outlier, Sujet : CHEMISTRY, MULTIDISCIPLINARY

Résumé : To date, the successful low-temperature synthesis of the aluminosilicate imogolite nanotubes always involved initial concentrations of the reagents in the millimolar range, higher concentrations being reported to lead to the formation of the less well characterized allophane phase. The present work shows that reaction kinetics and not initial concentration control the formation of the nanotubes: substantial amounts of well formed imogolite were obtained from a decimolar initial concentration, i.e. 100 times higher than the "standard" protocol. The allophane-like spheroids expected from the high reagent concentration were not observed in this work, and proto-imogolite was obtained instead.

Mots-clés Agrovoc : silicate, structure chimique

Mots-clés complémentaires : Nanotube

Classification Agris : 000 - Autres thèmes

Champ stratégique Cirad : Hors axes (2005-2013)

Auteurs et affiliations

• Levard Clément, Université Paul Cézanne (FRA)
• Masion Armand, Université Paul Cézanne (FRA)
• Rose Jérôme, Université Paul Cézanne (FRA)
• Doelsch Emmanuel, CIRAD-PERSYST-UPR Recyclage et risque (FRA) ORCID: 0000-0002-7478-4296
• Borschneck Daniel, Université Paul Cézanne (FRA)
• Dominici Christian, Université Paul Cézanne (FRA)
• Ziarelli Fabio, Université Paul Cézanne (FRA)
• Bottero Jean Yves, Université Paul Cézanne (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/552599/)

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